Posted by **Christine** on Wednesday, October 3, 2012 at 5:17pm.

Moe earns 15% more than her husband Joe. Together they make 78000 per year. What is Joe’s annual salary?

Answer to two significant figures.

My answer was $31000, but the program doesn't seem to want to take it. Did I do something wrong?

- Physics(class) /Math (problem) -
**Steve**, Wednesday, October 3, 2012 at 5:22pm
if Joe makes J dollars, then Moe earns 1.15J

J + 1.15J = 78000

J = 36279

So, Joe makes $36279

Moe makes $41721

add 'em up to get 78000

- Physics(class) /Math (problem) -
**Christine**, Wednesday, October 3, 2012 at 8:42pm
Oh I found my mistake thanks. :)

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